<template>
	<el-container class='home-container'>
  	<el-header>
  	<div>
       <img src="../assets/heima.png" alt="">
        <span>电商后台管理系统</span>
     </div>
      <el-button type="info" @click="logout">退出</el-button>  	
  </el-header>
  <el-container>
    <el-aside :width="isCollapse?'64px':'200px'">
    	<div class="toggle-button" @click="toggleCollapse">|||</div>
    	 <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF"
      unique-opened
      :collapse="isCollapse"
      :collapse-transition="false"
      router
      :default-active='activePath'
      >
      <el-submenu :index="item.id+''" v-for='item in menulist' :key=item.id>
        <template slot="title">
          <i :class="iconsObj[item.id]"></i>
          <span>{{item.authName}}</span>
        </template>
        <el-menu-item :index="'/'+subItem.path" v-for='subItem in item.children' 
        :key='subItem.id'
        @click="saveNavState('/' + subItem.path)"
        >
          <template slot="title">
          <i class="el-icon-menu"></i>
          <span>{{subItem.authName}}</span>
          </template>
        </el-menu-item>
      </el-submenu>
    </el-menu>
    </el-aside>
    <el-main>
    	<router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
	export default {
		data () {
			return {
				menulist: [],
		     	iconsObj: {
		        '125': 'iconfont icon-user',
		        '103': 'iconfont icon-tijikongjian',
		        '101': 'iconfont icon-shangpin',
		        '102': 'iconfont icon-danju',
		        '145': 'iconfont icon-baobiao'
		      },
		      isCollapse: false,
		      activePath: []
			}
		},
		created () {
			this.getMenuList()
			this.activePath = window.sessionStorage.getItem('activePath')
		},
		methods: {
			logout () {
				window.sessionStorage.clear()
				this.$router.push('/login')
			},
			async getMenuList () {
				const { data: res } = await this.$http.get('menus')
				if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
				this.menulist = res.data
				console.log(res)
			},
			toggleCollapse () {
				this.isCollapse = !this.isCollapse
			},
			saveNavState (activePath) {
				window.sessionStorage.setItem('activePath', activePath)
				this.activePath = activePath
			}
		}
	}

</script>

<style lang='less' scoped >
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right:none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}

</style>
